86 lines
2.5 KiB
Nix
86 lines
2.5 KiB
Nix
{ config, pkgs, ... }:
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let
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lokiHost = "loki.john-stream.com:3100";
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in
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{
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systemd.services.promtail.serviceConfig = {
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SupplementaryGroups = [ "docker" ];
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};
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environment.systemPackages = with pkgs; [
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(pkgs.writeShellScriptBin "promtail-check" "systemctl status promtail.service")
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(pkgs.writeShellScriptBin "promtail-watch" "journalctl -u promtail.service -b -n 25 -f")
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];
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services.promtail = {
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enable = true;
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configuration = {
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server = {
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http_listen_port = 3031;
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grpc_listen_port = 0;
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};
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positions = {
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filename = "/tmp/positions.yaml";
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};
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clients = [{url = "http://${lokiHost}/loki/api/v1/push";}];
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scrape_configs = [
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{
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job_name = "journal";
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journal = {
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max_age = "24h";
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path = "/var/log/journal";
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json = true;
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# matches: _TRANSPORT=kernel;
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labels = {
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job = "systemd-journal";
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host = config.networking.hostName; # Dynamically fetch the hostname
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};
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};
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relabel_configs = [
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{
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source_labels = [ "__journal__systemd_unit" ];
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target_label = "unit";
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}
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];
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}
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{
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job_name = "flog_scrape";
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docker_sd_configs = [
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{
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host = "unix:///var/run/docker.sock";
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refresh_interval = "5s";
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}
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];
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relabel_configs = [
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{
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source_labels = [ "__meta_docker_container_name" ];
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regex = "/(.*)";
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target_label = "container";
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}
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{
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source_labels = [ "__meta_docker_container_label_com_docker_compose_oneoff" ];
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target_label = "oneoff";
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}
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{
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source_labels = [ "__meta_docker_container_label_com_docker_compose_project_config_files" ];
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target_label = "compose_file";
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}
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{
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source_labels = [ "__meta_docker_container_label_com_docker_compose_project" ];
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target_label = "project_name";
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}
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{
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source_labels = [ "__meta_docker_container_label_com_docker_compose_service" ];
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target_label = "service";
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}
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{
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target_label = "host";
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replacement = "${config.networking.hostName}";
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}
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];
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}
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];
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};
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# extraFlags
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};
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} |